2021 Peterbilt 365 problems, complaints & recalls
Safety recalls (3)
Power Train:automatic Transmission:lever And Linkage:column Shift 2024-03-20 · campaign 24V190000 · 70,509 vehicles
Defect: PACCAR Incorporated (PACCAR) is recalling certain 2021-2024 Peterbilt 365, 367, 389, 535, 536, 537, 548, 567, 579, and 2021-2025 Kenworth T180, T280, T380, T480, T680, T880 and W990 trucks. The right-hand gear shifter stalk connectors may have been improperly crimped, resulting in a loss of communication.
Risk: A loss of communication between the gear shifter and the transmission may result in the vehicle becoming disabled after coming to a stop, increasing the risk of a crash.
Fix: Dealers will inspect and replace the gear shifter assembly as necessary, free of charge. Owner letters were mailed December 15, 2025, then phased after that. Owners may contact Kenworth customer service at 1-425-828-5888 or Peterbilt customer service at 1-940-591-4220. PACCAR's numbers for this recall are 24PBE and 24KWE.
Fuel System, Diesel:fuel Injection System:fuel Rail 2021-05-26 · campaign 21V391000 · 612 vehicles
Defect: PACCAR Incorporated (PACCAR) is recalling certain 2018-2021 Peterbilt 337, 348, 365, 367, 520, 567, Kenworth T270, T370, T440, T470, T800 and T880 vehicles. The sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.
Risk: A fuel leak in the presence of an ignition source increases the risk of a fire.
Fix: Dealers will inspect the rail threads and fuel lines, and replace the rail as necessary, free of charge. Owners may contact PACCAR customer service at 1-425-828-5888 (Kenworth) or 1-940-591-4220 (Peterbilt). PACCAR's numbers for this recall are 21KWC and 21PBD.
Power Train:axle Assembly 2020-08-26 · campaign 20V506000 · 1,097 vehicles
Defect: PACCAR Incorporated (PACCAR) is recalling certain 2020-2021 Peterbilt 348, 365, 367, 389, 520, 567 and Kenworth T800, T880, W900, W990 vehicles equipped with Watson and Chalin steerable lift axle suspension systems (model SL2065). The axles may have lower rear pivot bolts that are not long enough to sufficiently engage the locking feature of the corresponding nuts.
Risk: The short screws can cause the hardware to separate from the suspension system and become road hazards, increasing the risk of a crash and/or injury.
Fix: PACCAR will notify owners, and dealers will inspect suspect chassis and replace the pivot bolts, as necessary, free of charge. The recall began September 29, 2020. Owners may contact Kenworth customer service at 1-425-828-5888 and Peterbilt customer service at 1-940-591-4220. PACCAR's numbers for this recall is 20PBE and 20KWC.
Service bulletins (51)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Engine 2026-09-11 · P001 · Service Bulletin/Repair Instructions
"kenworth: dealers should check the chassis list and sir weekly for vin changes. 2 chassis added to the chassis list. peterbilt: dealers should check the chassis list and sir weekly for vin changes. 10 chassis added to the chassis list."
Forward Collision Avoidance: Warnings 2026-08-13 · 24KWL/PBL · Service Bulletin/Repair Instructions
the verbiage in the introduction section has been updated.
Engine 2026-08-13 · 43-088 · Service Bulletin/Repair Instructions
the procedure has been updated to include additional steps for verifying the software level on the vehicle electronic control unit (vecu2) and digital display (dd). steps have also been added to the paccar common rail injection 2 (pci2) software verification.
Engine 2026-08-01 · E316 · Service Bulletin/Repair Instructions
235 chassis have been removed from the chassis list and unflagged in prws due to expiration of applicable warranty coverage. 5 chassis have been added to the chassis list. the total chassis population is now 15,637.
Engine 2026-07-21 · 43-088 · Service Bulletin/Repair Instructions
this optional software update is now available for chassis equipped with emy 2021b-2023 paccar mx-11 and mx-13 engines. this update provides customers with additional time to service their trucks before a def-related derate occurs. the software is being offered to customers in alignment with recentl
Engine 2026-07-10 · E318 · Service Bulletin/Repair Instructions
the condition, chassis affected, service action, warranty, and procedure sections have been updated to include the latest prognostics bulletin verbiage. the warranty section has also been updated to include peterbilt specific srt codes for filing cross-division repairs.
Showing the 6 most recent of 51 bulletins. Search all of them free at nhtsa.gov.
What owners report
No detailed complaint narratives on file.
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.